[jira] [Commented] (PARQUET-1750) Reduce Memory Usage of RowRanges Class

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PARQUET-1750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17101729#comment-17101729 ] 

ASF GitHub Bot commented on PARQUET-1750:
-----------------------------------------

belugabehr commented on pull request #735:
URL: https://github.com/apache/parquet-mr/pull/735#issuecomment-625297512


   @Fokko I took a look at this once more and thought I could make it even a little neater.  Please take a look.  Thanks!!  In regards to testing, there is already a `TestRowRanges` class to validate.


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> Reduce Memory Usage of RowRanges Class
> --------------------------------------
>
>                 Key: PARQUET-1750
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1750
>             Project: Parquet
>          Issue Type: Improvement
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Minor
>              Labels: pull-request-available
>
> {{RowRanges}} maintains an internal {{ArrayList}} with a default capacity (10).  However, sometimes it is known ahead of time that only a single instance of {{Range}} will be added.  For these cases, do not instantiate an {{ArrayList}}



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